CVE-2026-48138
Out-of-bounds read in NI grpc-device streaming API enables DoS via crafted write.
Is CVE-2026-48138 being exploited?
Not confirmed. CVE-2026-48138 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-48138?
CVE-2026-48138 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-48138?
Yes. A fix has been recorded for CVE-2026-48138. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48138 affect?
CVE-2026-48138 affects NI grpc-device 2.17.0 and earlier. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48138?
Apply vendor patch when released; monitor for abuse.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Denial of service via crafted write; may crash NI grpc-device streaming service.
Patch when possible
- affected<= 2.17.0
- affected<= 26.3.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.